杰利蝾螈（Gerrymander）乃指选区划分之方式是专为某方选举利益而设计的。这个字词从美国麻萨诸塞州州长埃尔布里奇·格里（Elbridge Thomas Gerry）的名字，及当时划分后的选区形状貌似蝾螈（salamander）此两者而来。

杰利蝾螈这词的原文「Gerrymander」在其语言的使用方法中，可同时作动词和名词使用。作动词时，指将选区划分成对特定某方有利；作名词时，指专对特定某方利益设计并划分后的选区。其发音方面，原麻州州长盖利（Gerry）里的「G」是发音成硬G/g/，但在杰利蝾螈（gerrymander）里，因为颚化的关系而发音成软G。

In the process of setting electoral districts, gerrymandering is a practice intended to establish a political advantage for a particular party or group by manipulating district boundaries. The resulting district is known as a gerrymander (/ˈdʒɛriˌmændər/); however, that word can also refer to the process. The term gerrymandering has negative connotations.